Unfortunately, Kam, you hafta actually hit with the move and it's a charged move.. anybody in their right mind would have either sidestepped or kawarimi'd after the first two hits.

You wanna talk badass attacks.. some of the combos Sasuke can do ending in shishi-rendan are damned near instant kills.

One thing I DID notice about Tsunade is that just her B string combo is a half-decent juggle and since she hits like a tank that's saying an awful lot. The fact that she can heal better than 50% of her health in combat is a major plus too.